In terms of chords and melody, Popular has complexity on par with the typical song, having near-average scores in Chord Complexity, Chord Progression Novelty and Chord-Bass Melody and below-average scores in Melodic Complexity and Chord-Melody Tension.
Popular has sections analyzed in the following keys: C♯ Dorian, D Minor, and D♯ Minor. Click on the linked cheat sheets for popular chords, chord progressions, downloadable midi files and more!